Smoke-consumer



F; s'. SEJNOHA.

Patented Mayv29, 1894.

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P. S. ,SEJNOHL SMOKE CONSUMER.

2 Sheets-Sheet 2.

(No Model.) l

Patted May 29, 1894.

Athe rear,

FRANK S; SEJNOHA, OF CHICAGO, ILLINOIS.

SMOKE-CONSUMER.

sPEcrFIcATIoN forming part of Letters Patent No. 520,453, dated May 29, 1894.

Application filed February l 0| 1894. Serial No. 499,720- (No model.)

To @ZZ whom t may concern.'

Be it known that I, FRANK S. SEJNOHA, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Smoke-Consumers, of which the following is a specification.

This invention relates to smoke consumers, and its object is the production of a smoke consumer wherein a blast of air and steam is introduced into the furnace in such a manner as to act as a blanket whereby the solid particles of unconsumed matter and other products of combustion which are ordinarily carried off in the smoke from'the combustion furnace are held in the combustion chamber until they are wholly consumed.

A further object is the production of a smoke consumer simple in construction, easily manipulated and efficient and effective inoperation.

With these objects in view, the invention consists inthe construction, arrangement, relative locations and adaptations hereinafter more particularly described, and as shown in the accompanying drawings, forming apart hereof, and nally pointed out in the appended claims.

Reference is now had to the accompanying drawings wherein similar reference signs indicate similar parts throughout the several views.

Figure 1 is a front elevation of a boiler with the invention applied thereto. Fig 2 is a horizontal sectional View taken onthe line 2-2 Fig. 1 looking in the direction of the arrows and showing a slightly different arrangement of the steam pipe. Fig. 3 is a vertical sectiontaken on the line 3 3, Fig. 1, looking in the direction of the arrows. Fig. 4 is aV view, in side elevation, looking from of the blast hood removed from its place in the brick setting of a furnace. Fig.v 5 is a cross section taken on the line 5 5 of Fig. et and also showing in partial, longitudinal section, one ofthe air pipes feeding the blast hood. Fig. 6 is a longitudinal section of the steam nozzle, upon an enlarged scale.

A represents the brick work or setting of an ordinary furnace; B the bridge wall; C the grate bars; E the ash pit; F the ash-pit doors; G the furnace doors, all of the usual and Well known construction and therefore require no specific description.

H is a suitable steam pipe connecting at one end in any suitable manner with the boiler, or other source of steam supply. I is a suitable stop cock located in said steam pipe for regulating the flow of steam therein. This pipe H forms a T-connection with a short pipe K, centrally of the length thereof, and which said pipe is closed at the ends thereof as is clearly shown in Fig. 1. Projecting from this steam pipe K, are several short pipes each-carrying at its end a nozzle M. In the form shown inthe drawings, see Figs. l and 2, two pipes L are arranged on each side of the T-connection between pipesv H and K. Pipes L and nozzles M project a short distance into the mouth of larger pipes N fitted or seated in the masonry or frame work of the furnace immediately above the furnace doors. The outer ends O of which see Figs. 2 and 5, project slightly beyond the frame work of the furnace and are open to receive the outer air, as will be more fully hereinafter described. At the inner ends of these pipes N are formed elbows P. In the form shown in the drawings these pipes N are arranged in pairs, the elbows P of each pair being turned toward each other.

l Q represents the blast hoods, each hood swiveling upon a pair of elbows P so as to be capable of an angular adjustment thereupon for a purpose presently to be described. A space in the framework or setting of the boiler immediately above the furnace door is providedfor each hood Q so that when said hood is in place its nose, presently to be described, opens into the furnace chamber at a point above the furnace door. This hood comprises an oblong hollow casing having the sides R, S and T `thereof squared relatively to each other, and having the sides V and U beveled or inclined from the points b and a respectively to the points c and d; the part from c to CZ forming a nose extending lthe whole length of the hood. This nose is slotted as at WV, throughout its length, said slot communicating with the interior or chamber of the blast hood. The bevelU is provided in order to secure a square bearing of the hood in its setting, and at the same time to permit the hood to be tilted upon its elbow supports P,

IOO

P, so as to adjust the nose and thus regulate and adjust the path of the blast through the furnace chamber as indicated by the arrows in Fig. 3.

Nozzle M is of simple construction and consists of a thimble or sleeve c internally screw threaded which is screwed onto the externally screw threaded end of pipe L.

f is the nozzle proper and is screwed into the thimble e as clearly shown in Fig. 6.

The pipes K are conveniently supported by brackets projecting from the front of the boiler or in any suitable and well known manner. These pipes are arranged conveniently above the furnace doors and transverse of the furnace.

In the form shown in Fig. l pipe H leading from a convenient connection with the boiler or other source of steam'supply is provided with two elbows g and h and the leg below elbow h is located centrally of the furnace and extends vertically. If preferred however, the elbow h can be located immediately above the T-connection with pipe K and the leg from elbows g to h extend horizontally immediately above pipe K to the side of the furnace, or any other convenient location and arrangement of said steam pipe H may be employed to adapt it to the construction and arrangement of the furnace without departing from the spirit of my invention.

I have shown my invention as applied to a single furnace having double doors, but it is obvious that where several such furnaces are employed, as is frequently the case in large factories, &c., arranged side by side, each furnace can be supplied with my invention. In such case each furnace may have a separate pipe H leading from or connected to its own boiler, or else a single steam pipe can be arranged with connections from any one or more, or each of the boilers and the several pipes H may draw their steam supply therefrom or one pipe H may supply two adjacent furnaces by a T-coiinection at the point where elbow g is now shown. In this latter case pipe K will be extended so as to receive a T connection centrally of the adjacent furnace similar in all respects to the T shown in Figs. l, 2 and 3, or else a separate pipe K can be provided for each furnace, as will be obvious. Again where a small furnace is employed having only one door to the furnace orcombiistion chamber, it is obvious that only one blast hood need be employed. In that case only one pair of elbow pipes N and onlyl one pair 0f pipes L and nozzles M need be employed, and the T-connection between pipes H and K can be located centrally between the pair of pipes L as will be readily understood. Or if desired only one pipe L, nozzle M and tube N need be employed though I prefer two to each blast hood.

While I have shown the nose of the blast hood as provided with a slot or opening eX- tending the whole length thereof, and while I prefer such construction, yet it is obvious that I may have merely a series of perforations instead thereof or any othei' suitable connection may be made.

Many other variations and changes, all obvious to any person skilled in the art, maybe made without departing from the spirit or scope of my invention, and I want it distinctly understood that I do not confine myself to the specific details of construction and arrangement herein shown. i

The operation of my invention is as follows: A supply of steam from any suitable source as from the boiler is admitted to pipe I'I. This supply can be readily and easily regulated by means of the stop-cock or check valve I. The steam passes from pipe H into pipe K, centrally of the .length thereof .and from thence into the short projecting pipes o1' stems L and through opening N, blast hood Q and through opening IV in the nose of the blast hood on into the furnace or combustion chamber. By locating the T-connection between pipes K and I-I centrally of the length of the former an equal supply of steam is admitted to each end or arm of said pipe and consequently to each short pipe L, nozzle M and pipe N and to each end of each blast hood Q, thereby securing a steady and uniform blast in each furnace or combustion chamber. By reason of the pipes being open ended and thereby communicating with the outer air, a draft of air is created by 'the jet of steam issuing from the nozzle M and this jet of steam forces the airinto the blast hood Q. Here the air and steam b ecome thoroughly iniired and a slight condensation of the steam is caused by coming in contact with the cooler air. The draft issuing from the blast hood, through the slot or opening W in the nose thereof, and into the furnace or combustion chamber is moisture laden and thus acts as a blanket to prevent the solid or unconsumed particles or productsof combustion from being carried o ff, by the flame in the form of smoke, until they have been thoroughly subjected to the action of the heat and flame and consequently thoroughly and effectually consumed. This action, taking place in the combustion chamber itself avoids the necessity of conducting the smoke containing the unconsumed particles of the product of combustion to an auxiliary furnace to be consumed and thus is produced an extremely simple and convenient arrangement whereby such consumption is effectually and easily secured. The blast of steam moistened air issuing from the mouth WV of the blast hood is directed downwardly in an inclined direction, and strikes the bridge wall a short distance above the rear ends of the grate bars. This blast traverses the mass of liame arising from the fuel and while the fiame is not arrested by the blast, the unconsumed particles are arrested and held in the flame until they have been consumed or else they are forced by the blast back to the bridge wall, thus passing over the bed of heated and burning fuel. The bridge wall against which IIO the blast impinges, acts as a deflector to return such particles as are not consumed in the passage rearwardly over the fuel bed, back or forwardly over the burning fuel and by reason of the inclined direction of the draft from its point of entrance to the point it strikes the bridge wall is brought in closer contact with the heat' and thereby the solid or unconsuined particles are thoroughly and eifectually consumed. The beveled portion U of the blast hood and the pivoting of said hood upon its elbow supports forms animportant and valuable feature of my invention for thereby I am enabled to secure a steady rest for the blast hood in its setting, and at the same time provide angular adjustment of the same so as to regulate and adj ust the path of the blast in the furnace chamber by filing the beveled face U as occasion may require.

It will be observed that the mouth of vthe blast hood openinginto the furnace is flared. The object of this construction is to permit the blast issuing therefrom to reach every part of the furnace chamber, for if said mouth were straight, a part of said chamber would not be reached by the blast, as will be readily understood by reference to Fig. 2, and consequently the effectivenessof the apparatus would be seriously impaired.

Having now fully described my invention and explained the principles thereof and the best inode in which I prefer to apply these principles, what I claim as new, and desire to secure by Letters Patent of the United States, t

1. In a smoke consumer a blast hood adapted to receive'a blast of air and steam and to deliver the same into a combustion chamber, said blast hood being beveled upon the lower side thereof whereby a solid bearing support is secured therefor, as and for the purpose set forth.

2. -In a smoke consumer a blast hood having swivel supports and beveled upon the lower face thereof whereby it may be angularly adjusted, and solidly supported in its angular adjustments, as and for the purpose set forth.

'3. In a smoke consumer an inclined or tilted blast hood communicating with a furnace chamber, so as to deliver an inclined blast therein, and having an inclined or beveled lower face, in combination with air and steam pipes upon which said blast hood is mounted to be angularly adjusted; substantially as and for the purpose described.

4. In a smoke consumer elbow pipes communicating at one end with the open air, a blast hood swiveled upon the other end of said open ended elbow, air pipes, a system of steam pipes communicating with a source of steam, nozzles projecting from said steam pipes into the open ends of the elbow pipes and suitable openings between the blast hood and combustion chamber of a furnace, as and for the purpose described.

5. In a smoke consumer elbow pipes communicating at one end with the open air, a blast hood swiveled upon the other end thereof, said hood having a beveled face and capable ofangular adjustment upon its swivel supports, and communicating with the interior of a furnace chamber steam jets projected into the open ends of the elbow pipes and a system of steam pipes for supplying steam to said jets from any suitable source; substantially as described and for the purpose set forth.

6. In a smoke consumer a steam supply pipe, a delivery pipe, a T-connection between said supply and delivery pipes centrally of the length of the latter, a pair of steam jets connecting with the delivery pipe on each side of the T-connection, elbow pipes or tubes communicating with the air, said jets projectinginto the open ends of said elbow pipes or tubes, a blast hood adj ustably swiveled on the other ends of said elbow tubes or pipes and communicating with the saine and also with the interior of a furnace chamber, all combined, arranged and operating substantially as and for the purpose set forth. u

7. In a smoke consumer, an oblong casing forming a blast hood, two faces of said hood beveled to form a nose piece, a Haring mouth in said nose piece communicating with the interior of said hood and opening into a furnace chamber and suitable air and steam inlets in the ends of saidfcasing or blast hood;

as and for the purpose set forth.

8. In a smoke consumer, a blast hood located in a boiler setting or framework above and in proximity to the furnace door, said hood being tilted or inclined and communieating with the interior of said furnace chamber so as to deliver an inclined blast therein to impinge on the bridge wall a short distance above the rear ends of the grate bars open ended tubes or elbow pipes also located in the boiler setting and communicating with IOC IIO

the interior of the blast hood and also the open ain-and upon which the lblast hood is adj ustably swiveled, steam jets projected into the open ends of said elbow pipes or tubes and a 'system of pipes delivering steam from any suitable source to said jetsrall combined, arranged and operating as and for the purpose set forth.

In testimony whereof I have hereunto set. my hand in the presence of two witnesses. FRANK S. SEJNOI-IA. In presence of- CHARLES SHENOHA, DAVID 'TRANILl 

